Guess it depends on your wrecker. I converted a buddy's 2000 with H4-style lights to 2003-style lights. We went to the wrecker, told the lady what we wanted; she walked outside with us, cut off the connectors from the harness, and said "put those in your pocket".

I cut off his old connectors, soldered on the new ones, and they work great.

That reminds me, I think I need to get the headlight mounting clips too; I can't remember if my lights came with them. Will check when I get home.

I probably shouldn't say what wrecker that was, at least until I get what I need.